Question

friends plz answer my question it's urgent.........​

Answer 1

Answer:

Let f(x) = x²-kx-2

Now, ➡️ x - 3 = 0

➡️ x = 3

Now, f(3) = x²-kx-2

= (3)²-k×(3) - 2

➡️ = 9 -3k-2

Therefore,f(3) = 0

9-3k-2 = 0

-3k = -7

k = 7/3

➡️Hence, k= 7/3

I hope it helps you..

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